User's Manual  272  Document #: LTRT-42060 
  Mediant 2600 E-SBC 
Parameter  Description 
Transport Type 
CLI: voip-network proxy-ip > 
transport-type 
[ProxyIp_TransportType] 
Defines the transport type for communicating with the Proxy 
server.  
  [0] UDP 
  [1] TCP 
  [2] TLS 
  [-1] = Undefined 
Note: If this parameter is not defined, the setting of the global 
parameter SIPTransportType is used.  
Proxy Name 
CLI: proxy-name 
[ProxySet_ProxyName] 
Defines an arbitrary name to easily identify the Proxy Set. 
The valid value is a string of up to 20 characters.  
DNS Resolve Method 
CLI: dns-resolve-method 
[ProxySet_DNSResolveMethod] 
Defines the DNS query record type for resolving the Proxy 
server's host name into an IP address. 
  [-1] = DNS resolving is done according to the settings of the 
global parameter, Proxy DNS Query Type. 
  [0] A-Record = (Default) A-record DNS query. 
  [1] SRV = If the Proxy address is configured with a domain 
name without a port (e.g., domain.com), an SRV query is 
done. The SRV query returns the host names (and their 
weights). The device then performs DNS A-record queries 
per host name (according to the received weights). If the 
configured Proxy address contains a domain name with a 
port (e.g., domain.com:5080), the device performs a regular 
DNS A-record query. 
  [2] NAPTR = NAPTR query is done. If successful, an SRV 
query is sent according to the information received in the 
NAPTR response. If the NAPTR query fails, an SRV query is 
done according to the configured transport type. If the 
configured Proxy address contains a domain name with a 
port (e.g., domain.com:5080), the device performs a regular 
DNS A-record query. If the transport type is configured for 
the Proxy address, a NAPTR query is not performed. 
Note: 
An SRV query can return up to four host names. For each 
host name, the subsequent DNS A-record query can be 
resolved into 
up to 15 IP addresses. However, the device 
supports up to 30 DNS-resolved IP addresses. If the device 
receives more than this number of DNS-resolved IP addresses, 
the device uses the first 30 IP addresses in the received list, 
and ignores the rest. 
Web/EMS: Enable Proxy Keep 
Alive 
CLI: voip-network proxy-set > 
proxy-enable-keep-alive 
[ProxySet_EnableProxyKeepAliv
e] 
Enables the device's Proxy Keep-Alive mechanism, which 
checks communication with the Proxy server. 
  [0] Disable (default). 
  [1] Using Options = Enables the Proxy Keep-Alive 
mechanism using SIP OPTIONS messages. The device 
sends these messages every user-defined interval, 
configured by the 'Proxy Keep Alive Time' parameter. If the 
device receives a SIP response code that is also configured 
in the 'Keep-Alive Failure Responses' parameter (below), the 
device considers the Proxy as down. You can also configure 
whether to use the device's IP address or string name 
("gateway name") in the OPTIONS message (see the 
UseGatewayNameForOptions parameter). 
  [2] Using Register = Enables the Proxy Keep-Alive